Description: ESD PU foam chair/Anti static PU foam chair Cushion material:foming PU.Size:380*380mm Back material:PU Foam, size:350*250mm Chassis:Steel plating or coating Gas lifting lever:High quality gas lifting with adjustable height:680 -880 mm Foot of chair:Aluminum alloy five star foot D:480mm Wheel of chair:High strength PA, non trace castor